Question

我正在尝试运行以下抛出

AttributeError：＆＃39; list＆＃39;对象没有属性＆＃39;对象＆＃39;

script.py

#Get Dota2 Item Rarities
dotaItemRarityUrl = 'http://api.steampowered.com/IEconDOTA2_570/GetRarities/v1?'
dotaItemRarityPayload = {'key': settings.SOCIAL_AUTH_STEAM_API_KEY,
                    'language': 'en',
                    }
dotaItemRarityInfo = requests.get(dotaItemRarityUrl, params=dotaItemRarityPayload)
dotaItemRarity = dotaItemRarityInfo.json()
dotaItemRarity = dotaItemRarity['result']['rarities']
print(dotaItemRarity)
#print(dotaItemQualities)

#Populate Database With Item Rarities that do NOT exist already
for rarity in dotaItemRarity:
    print rarity
    irarityId = rarity['id']
    irarityProperName = rarity['localized_name']
    irarityInternalName = rarity['name']
    irarityColor = rarity['color']

    q = dotaItemRarity.objects.filter(rarityId=irarityId)
    print q

    if len(q) == 0:
        newRarity = dotaItemRarity(rarityId=irarityId,
                                   rarityProperName=irarityProperName,
                                   rarityInternalName=irarityInternalName,
                                   rarityColor=irarityColor)
        newRarity.save()

models.py

class dotaItemRarity(models.Model):
    rarityId = models.IntegerField(max_length=3,primary_key=True)
    rarityProperName = models.CharField(max_length=60)
    rarityInternalName = models.CharField(max_length=50)
    rarityColor = models.CharField(max_length=30)

    def __unicode__(self):
        return self.rarityInternalName

我正在使用南方来处理迁移，并尝试了多种方法来修复此问题，例如删除表并重建它们。据我所知，这应该有效，任何人都可以指出我正确的方向。

Answer 1

dotaItemRarity是一个列表，它没有objects属性：

q = dotaItemRarity.objects.filter(rarityId=irarityId)

那是因为你将它绑定到JSON结果的列表中：

dotaItemRarity = dotaItemRarityInfo.json()
dotaItemRarity = dotaItemRarity['result']['rarities']

Django模型不，正如您所期望的那样。

如果您将dotaItemRarity Django模型导入script.py，则该名称不再绑定到该模型，因为您将其替换为列表。

重命名列表以使用不掩盖模型的其他名称。

请注意，Python style guide建议您为类（包括Django模型）使用CamelCase名称，以避免此类错误。

遵循PEP 8稍微重构您的代码，以及使用更清晰的命名实践：

models.py：

class DotaItemRarity(models.Model):
    rarity_id = models.IntegerField(max_length=3, primary_key=True)
    rarity_proper_name = models.CharField(max_length=60)
    rarity_internal_name = models.CharField(max_length=50)
    rarity_color = models.CharField(max_length=30)

    def __unicode__(self):
        return self.rarity_internal_name

script.py：

#Get Dota2 Item Rarities
url = 'http://api.steampowered.com/IEconDOTA2_570/GetRarities/v1'
payload = {'key': settings.SOCIAL_AUTH_STEAM_API_KEY, 'language': 'en'}
response = requests.get(url, params=payload)
rarities = response.json()['result']['rarities']

for rarity in rarities:
    rarity_id = rarity['id']

    try:
        DotaItemRarity.get(rarity_id=rarity_id)
    except DotaItemRarity.DoesNotExist:
        new_rarity = DotaItemRarity(
            rarityId=rarity_id,
            rarity_proper_name=rarity['localized_name'],
            rarity_internal_name=rarity['name'],
            rarity_color=rarity['color'])
        new_rarity.save()

AttributeError：'list'对象没有属性'对象'

1 个答案: